The LP8731-Q1 is a multi-function, programmable Power Management Unit (PMU), optimized for low power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1.2-A step-down DC-DC converters with dynamic voltage management (DVM), two 300-mA linear regulators, and a 400-kHz I²C-compatible interface to allow a host controller access to the internal control registers of the LP8731-Q1. The LP8731-Q1 device additionally features programmable power-on sequencing.

• Two LDOs for Powering Internal Processor Functions and I/Os
• High-Speed Serial Interface for Independent Control of Device Functions and Settings
• Precision Internal Reference
• Thermal Overload Protection
• Current Overload Protection
• Software Programmable Regulators
• External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)
• Undervoltage Lockout (UVLO)
• LP8731-Q1 is an Automotive-Grade Product: AECQ-100 Grade-1 Qualified
• Step-Down DC/DC Converter (2xBuck)
  • Programmable VOUT from:
    • Buck1 : 0.8875 V 1.675 V at 1.2 A
    • Buck2 : 0.8875 V 1.675 V at 1.2 A
  • Up to 96% Efficiency
  • PWM Switching Frequency of 2.1 MHz
  • ±2% Output Voltage Accuracy
  • Automatic Soft Start
• Linear Regulators (2xLDO)
  • Programmable VOUT of 0.8 V to 3.3 V
  • ±3% Output Voltage Accuracy
  • 300-mA Output Current
  • 30-mV (Typical) Dropout

• Regulated outputs (#)
• 4
• Vin (Min) (V)
• 2.8
• Vin (Max) (V)
• 5.5
• Iout (Max) (A)
• 1.2
• Rating
• Automotive
• LDO
• 2
• Iq (Typ) (mA)
• 0.04
• Features
• Enable Pin, I2C Control, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Adjustable
• Processor name
• Generic
• Processor supplier
• Generic
• Shutdown current (ISD) (Typ) (uA)
• 0.03
• Switching frequency (Typ) (kHz)
• 2100
• Configurability
• Factory programmable, Software configurable

LP8731-Q1的完整型号有：LP8731QYZRRQ1，以下是这些产品的关键参数及官网采购报价：

LP8731QYZRRQ1，工作温度：-40 to 125，封装：DSBGA (YZR)-25，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LP8731QYZRRQ1的批量USD价格：1.133（1000+）

LP8731-Q1 Evaluation Program Installer

此解决方案旨在为使用 TDA3x SoC（无需汽车电池输入）的 ADAS 应用创建尺寸经优化的集成电源设计。通过仅面向需要较低处理性能的应用，我们可以选择的器件和组件将比采用较高性能处理器的系统更小。